<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>验证码 | BuildAdmin</title>
    <meta name="generator" content="VuePress 1.9.7">
    <link rel="icon" href="/images/favicon.ico">
    <meta name="description" content="使用流行技术栈快速创建商业级后台管理系统-BuildAdmin是基于TP6、Vue3.x、Typescript、Vite、Pinia、Element plus等的开源后台系统">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="keywords" content="BuildAdmin,ThinkPHP6通用后台,Vue3后台,BuildAdmin文档,vue3开源后台,vue3模板与案例市场">
    <meta name="author" content="妙码生花">
    <meta name="robots" content="all,follow">
    
    <link rel="preload" href="/assets/css/0.styles.76db4400.css" as="style"><link rel="preload" href="/assets/js/app.26dfc26f.js" as="script"><link rel="preload" href="/assets/js/2.845fc4bd.js" as="script"><link rel="preload" href="/assets/js/64.01b9c0fd.js" as="script"><link rel="prefetch" href="/assets/js/10.31502a42.js"><link rel="prefetch" href="/assets/js/11.c0667200.js"><link rel="prefetch" href="/assets/js/12.0022daab.js"><link rel="prefetch" href="/assets/js/13.496b9007.js"><link rel="prefetch" href="/assets/js/14.57a77bc0.js"><link rel="prefetch" href="/assets/js/15.a2ee4fc7.js"><link rel="prefetch" href="/assets/js/16.7050523a.js"><link rel="prefetch" href="/assets/js/17.c4c5529f.js"><link rel="prefetch" href="/assets/js/18.f0350247.js"><link rel="prefetch" href="/assets/js/19.60586b14.js"><link rel="prefetch" href="/assets/js/20.4c6361b4.js"><link rel="prefetch" href="/assets/js/21.f793d386.js"><link rel="prefetch" href="/assets/js/22.299fa3b0.js"><link rel="prefetch" href="/assets/js/23.460af9b1.js"><link rel="prefetch" href="/assets/js/24.67771dfc.js"><link rel="prefetch" href="/assets/js/25.57b0bfa7.js"><link rel="prefetch" href="/assets/js/26.30e9faee.js"><link rel="prefetch" href="/assets/js/27.15ffda62.js"><link rel="prefetch" href="/assets/js/28.4ca46604.js"><link rel="prefetch" href="/assets/js/29.09a58cb6.js"><link rel="prefetch" href="/assets/js/3.959fd4f8.js"><link rel="prefetch" href="/assets/js/30.c53f15cb.js"><link rel="prefetch" href="/assets/js/31.0d30028e.js"><link rel="prefetch" href="/assets/js/32.4591b41b.js"><link rel="prefetch" href="/assets/js/33.bd9ed146.js"><link rel="prefetch" href="/assets/js/34.0bedaafb.js"><link rel="prefetch" href="/assets/js/35.dded2c4a.js"><link rel="prefetch" href="/assets/js/36.3f14f7ef.js"><link rel="prefetch" href="/assets/js/37.348ab3dc.js"><link rel="prefetch" href="/assets/js/38.bea67b35.js"><link rel="prefetch" href="/assets/js/39.66735bad.js"><link rel="prefetch" href="/assets/js/4.a7dad9f3.js"><link rel="prefetch" href="/assets/js/40.24ae817d.js"><link rel="prefetch" href="/assets/js/41.20484420.js"><link rel="prefetch" href="/assets/js/42.d2d9cf07.js"><link rel="prefetch" href="/assets/js/43.638926f9.js"><link rel="prefetch" href="/assets/js/44.5b2e8865.js"><link rel="prefetch" href="/assets/js/45.b08599e3.js"><link rel="prefetch" href="/assets/js/46.3e165b3e.js"><link rel="prefetch" href="/assets/js/47.0f981d94.js"><link rel="prefetch" href="/assets/js/48.52c21e5e.js"><link rel="prefetch" href="/assets/js/49.5d5d4c94.js"><link rel="prefetch" href="/assets/js/5.2d6b30a8.js"><link rel="prefetch" href="/assets/js/50.379ba4f0.js"><link rel="prefetch" href="/assets/js/51.4f4ecaea.js"><link rel="prefetch" href="/assets/js/52.81ccb047.js"><link rel="prefetch" href="/assets/js/53.419686cb.js"><link rel="prefetch" href="/assets/js/54.783cb319.js"><link rel="prefetch" href="/assets/js/55.110fde12.js"><link rel="prefetch" href="/assets/js/56.53900e45.js"><link rel="prefetch" href="/assets/js/57.55cd3551.js"><link rel="prefetch" href="/assets/js/58.2b82c178.js"><link rel="prefetch" href="/assets/js/59.fec4fe12.js"><link rel="prefetch" href="/assets/js/6.4e9a5a2e.js"><link rel="prefetch" href="/assets/js/60.99354f6f.js"><link rel="prefetch" href="/assets/js/61.c528c138.js"><link rel="prefetch" href="/assets/js/62.831c810e.js"><link rel="prefetch" href="/assets/js/63.9923d5c6.js"><link rel="prefetch" href="/assets/js/65.1288d968.js"><link rel="prefetch" href="/assets/js/66.f7c8aabd.js"><link rel="prefetch" href="/assets/js/67.89455afa.js"><link rel="prefetch" href="/assets/js/68.ca185a9e.js"><link rel="prefetch" href="/assets/js/69.dfe2288f.js"><link rel="prefetch" href="/assets/js/7.58476ce6.js"><link rel="prefetch" href="/assets/js/70.ea823c37.js"><link rel="prefetch" href="/assets/js/71.9e222b70.js"><link rel="prefetch" href="/assets/js/72.77b15e17.js"><link rel="prefetch" href="/assets/js/73.f42962da.js"><link rel="prefetch" href="/assets/js/74.a2912f27.js"><link rel="prefetch" href="/assets/js/75.8db3af79.js"><link rel="prefetch" href="/assets/js/76.45426b7e.js"><link rel="prefetch" href="/assets/js/77.a5d8ef7a.js"><link rel="prefetch" href="/assets/js/78.cfcdd83a.js"><link rel="prefetch" href="/assets/js/79.d8b5e327.js"><link rel="prefetch" href="/assets/js/8.419e773f.js"><link rel="prefetch" href="/assets/js/80.a64f0503.js"><link rel="prefetch" href="/assets/js/9.633ba216.js">
    <link rel="stylesheet" href="/assets/css/0.styles.76db4400.css">
  </head>
  <body>
    <div id="app" data-server-rendered="true"><div class="theme-container max-content"><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/" class="home-link router-link-active"><img src="/images/logo.png" alt="BuildAdmin" class="logo"> <span class="site-name can-hide">BuildAdmin</span></a> <div class="links"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><a href="/guide/" class="nav-link">
  指南
</a></div><div class="nav-item"><a href="/senior/" class="nav-link router-link-active">
  进阶
</a></div><div class="nav-item"><a href="https://buildadmin.com" target="_blank" rel="noopener noreferrer" class="nav-link external">
  官网
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div><div class="nav-item"><a href="https://demo.buildadmin.com" target="_blank" rel="noopener noreferrer" class="nav-link external">
  线上演示
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="代码仓库" class="dropdown-title"><span class="title">代码仓库</span> <span class="arrow down"></span></button> <button type="button" aria-label="代码仓库" class="mobile-dropdown-title"><span class="title">代码仓库</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="https://gitee.com/wonderful-code/buildadmin" target="_blank" rel="noopener noreferrer" class="nav-link external">
  Gitee
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li><li class="dropdown-item"><!----> <a href="https://github.com/build-admin/buildadmin" target="_blank" rel="noopener noreferrer" class="nav-link external">
  GitHub
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li></ul></div></div><div class="nav-item"><a href="/fastadmin.html" class="nav-link">
  🎉FastAdmin
</a></div><div class="nav-item"><a href="https://gitee.com/wonderful-code/buildadmin/blob/master/CHANGELOG.md" target="_blank" rel="noopener noreferrer" class="nav-link external">
  更新日志
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div> <a href="https://gitee.com/wonderful-code/build-admin-doc" target="_blank" rel="noopener noreferrer" class="repo-link">
    文档仓库
    <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav></div></header> <div class="sidebar-mask"></div> <aside class="sidebar"><nav class="nav-links"><div class="nav-item"><a href="/guide/" class="nav-link">
  指南
</a></div><div class="nav-item"><a href="/senior/" class="nav-link router-link-active">
  进阶
</a></div><div class="nav-item"><a href="https://buildadmin.com" target="_blank" rel="noopener noreferrer" class="nav-link external">
  官网
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div><div class="nav-item"><a href="https://demo.buildadmin.com" target="_blank" rel="noopener noreferrer" class="nav-link external">
  线上演示
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="代码仓库" class="dropdown-title"><span class="title">代码仓库</span> <span class="arrow down"></span></button> <button type="button" aria-label="代码仓库" class="mobile-dropdown-title"><span class="title">代码仓库</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="https://gitee.com/wonderful-code/buildadmin" target="_blank" rel="noopener noreferrer" class="nav-link external">
  Gitee
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li><li class="dropdown-item"><!----> <a href="https://github.com/build-admin/buildadmin" target="_blank" rel="noopener noreferrer" class="nav-link external">
  GitHub
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li></ul></div></div><div class="nav-item"><a href="/fastadmin.html" class="nav-link">
  🎉FastAdmin
</a></div><div class="nav-item"><a href="https://gitee.com/wonderful-code/buildadmin/blob/master/CHANGELOG.md" target="_blank" rel="noopener noreferrer" class="nav-link external">
  更新日志
  <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div> <a href="https://gitee.com/wonderful-code/build-admin-doc" target="_blank" rel="noopener noreferrer" class="repo-link">
    文档仓库
    <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>起步</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/senior/" aria-current="page" class="sidebar-link">后台交互</a></li><li><a href="/senior/directoryStructure.html" class="sidebar-link">目录结构</a></li><li><a href="/senior/oneClickCRUD.html" class="sidebar-link">CRUD代码生成</a></li><li><a href="/senior/databaseSpecification.html" class="sidebar-link">数据表设计规范</a></li><li><a href="/senior/multilingual.html" class="sidebar-link">国际化（多语言）</a></li><li><a href="/senior/addMenuRule.html" class="sidebar-link">菜单规则（路由与权限）</a></li><li><a href="/senior/faq.html" class="sidebar-link">常见问题</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>WEB端专项</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/senior/web/icon.html" class="sidebar-link">字体图标</a></li><li><a href="/senior/web/axios.html" class="sidebar-link">网络请求</a></li><li><a href="/senior/web/stores.html" class="sidebar-link">状态管理</a></li><li><a href="/senior/web/formItem.html" class="sidebar-link">表单项目组件（formItem）</a></li><li><a href="/senior/web/baInput.html" class="sidebar-link">输入组件（baInput）</a></li><li><a href="/senior/web/baTable.html" class="sidebar-link">表格组件（table）</a></li><li><a href="/senior/web/terminal.html" class="sidebar-link">WEB终端组件</a></li><li><a href="/senior/web/formValidation.html" class="sidebar-link">表单验证</a></li><li><a href="/senior/web/directives.html" class="sidebar-link">内置指令</a></li><li><a href="/senior/web/utils.html" class="sidebar-link">辅助工具/函数</a></li><li><a href="/senior/web/styles.html" class="sidebar-link">CSS/SCSS样式</a></li><li><a href="/senior/web/justNeedWeb.html" class="sidebar-link">只需要WEB端</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>WebNuxt专项（SSR）</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/senior/nuxt/intro.html" class="sidebar-link">介绍</a></li><li><a href="/senior/nuxt/directoryStructure.html" class="sidebar-link">目录结构</a></li><li><a href="/senior/nuxt/request.html" class="sidebar-link">网络请求</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>Server端专项</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/senior/server/debug.html" class="sidebar-link">开启调试</a></li><li><a href="/senior/server/apiDebug.html" class="sidebar-link">调试接口</a></li><li><a href="/senior/server/config.html" class="sidebar-link">配置</a></li><li><a href="/senior/server/controller.html" class="sidebar-link">控制器</a></li><li><a href="/senior/server/captcha.html" aria-current="page" class="active sidebar-link">验证码</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/senior/server/captcha.html#高级应用" class="sidebar-link">高级应用</a></li><li class="sidebar-sub-header"><a href="/senior/server/captcha.html#配置" class="sidebar-link">配置</a></li></ul></li><li><a href="/senior/server/dataLImit.html" class="sidebar-link">数据权限控制</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>模块开发</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/senior/module/start.html" class="sidebar-link">开始</a></li><li><a href="/senior/module/basicInfo.html" class="sidebar-link">模块基本信息</a></li><li><a href="/senior/module/directoryStructure.html" class="sidebar-link">模块目录结构</a></li><li><a href="/senior/module/configJson.html" class="sidebar-link">模块基本配置</a></li><li><a href="/senior/module/installSql.html" class="sidebar-link">模块安装SQL</a></li><li><a href="/senior/module/coreController.html" class="sidebar-link">模块核心控制器</a></li><li><a href="/senior/module/event.html" class="sidebar-link">模块行为事件</a></li><li><a href="/senior/module/webBootstrap.html" class="sidebar-link">向 main.ts 插入代码</a></li></ul></section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="验证码"><a href="#验证码" class="header-anchor">#</a> 验证码</h1> <p>我们准备了<code>ba\Captcha</code>类，该类基于<code>TP</code>的验证码类改造而成：通过Mysql保存验证码而不是Session以更好的支持API访问。</p> <p>使用验证码类的方法如下：</p> <ol><li>前端生成一个唯一的<code>id</code>。</li> <li>携带<code>id</code>请求验证码生成接口，该接口应直接输出图片，比如：<code>/index.php/api/common/captcha</code>。</li> <li>提交表单时，携带<code>id</code>，以对验证码的正确性进行验证。</li></ol> <h4 id="验证码生成示例"><a href="#验证码生成示例" class="header-anchor">#</a> 验证码生成示例</h4> <div class="language-php extra-class"><pre class="language-php"><code><span class="token comment">// 接受ID</span>
<span class="token variable">$captchaId</span> <span class="token operator">=</span> <span class="token variable">$this</span><span class="token operator">-&gt;</span><span class="token property">request</span><span class="token operator">-&gt;</span><span class="token function">request</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'id'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token comment">// 一些验证码的基本配置</span>
<span class="token variable">$config</span>    <span class="token operator">=</span> <span class="token keyword">array</span><span class="token punctuation">(</span>
    <span class="token string single-quoted-string">'codeSet'</span>  <span class="token operator">=&gt;</span> <span class="token string single-quoted-string">'123456789'</span><span class="token punctuation">,</span>            <span class="token comment">// 验证码字符集合</span>
    <span class="token string single-quoted-string">'fontSize'</span> <span class="token operator">=&gt;</span> <span class="token number">22</span><span class="token punctuation">,</span>                     <span class="token comment">// 验证码字体大小(px)</span>
    <span class="token string single-quoted-string">'useCurve'</span> <span class="token operator">=&gt;</span> <span class="token constant boolean">false</span><span class="token punctuation">,</span>                  <span class="token comment">// 是否画混淆曲线</span>
    <span class="token string single-quoted-string">'useNoise'</span> <span class="token operator">=&gt;</span> <span class="token constant boolean">true</span><span class="token punctuation">,</span>                   <span class="token comment">// 是否添加杂点</span>
    <span class="token string single-quoted-string">'length'</span>   <span class="token operator">=&gt;</span> <span class="token number">4</span><span class="token punctuation">,</span>                      <span class="token comment">// 验证码位数</span>
    <span class="token string single-quoted-string">'bg'</span>       <span class="token operator">=&gt;</span> <span class="token keyword">array</span><span class="token punctuation">(</span><span class="token number">255</span><span class="token punctuation">,</span> <span class="token number">255</span><span class="token punctuation">,</span> <span class="token number">255</span><span class="token punctuation">)</span><span class="token punctuation">,</span>   <span class="token comment">// 背景颜色</span>
<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token comment">// 实例化验证码类，传递`ID`并输出验证码</span>
<span class="token variable">$captcha</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Captcha</span><span class="token punctuation">(</span><span class="token variable">$config</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">return</span> <span class="token variable">$captcha</span><span class="token operator">-&gt;</span><span class="token function">entry</span><span class="token punctuation">(</span><span class="token variable">$captchaId</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><h4 id="验证码验证示例"><a href="#验证码验证示例" class="header-anchor">#</a> 验证码验证示例</h4> <div class="language-php extra-class"><pre class="language-php"><code><span class="token comment">// 接受验证码和验证码ID</span>
<span class="token variable">$data</span><span class="token punctuation">[</span><span class="token string single-quoted-string">'captcha'</span><span class="token punctuation">]</span>   <span class="token operator">=</span> <span class="token variable">$this</span><span class="token operator">-&gt;</span><span class="token property">request</span><span class="token operator">-&gt;</span><span class="token function">post</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'captcha'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$data</span><span class="token punctuation">[</span><span class="token string single-quoted-string">'captchaId'</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token variable">$this</span><span class="token operator">-&gt;</span><span class="token property">request</span><span class="token operator">-&gt;</span><span class="token function">post</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'captcha_id'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token variable">$captchaObj</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Captcha</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span><span class="token variable">$captchaObj</span><span class="token operator">-&gt;</span><span class="token function">check</span><span class="token punctuation">(</span><span class="token variable">$data</span><span class="token punctuation">[</span><span class="token string single-quoted-string">'captcha'</span><span class="token punctuation">]</span><span class="token punctuation">,</span> <span class="token variable">$data</span><span class="token punctuation">[</span><span class="token string single-quoted-string">'captchaId'</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token variable">$this</span><span class="token operator">-&gt;</span><span class="token function">error</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'验证码错误！'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><h2 id="高级应用"><a href="#高级应用" class="header-anchor">#</a> 高级应用</h2> <p>验证码类，不仅仅可以生成图像验证码，几乎支持所有：给用户展示/发送一个字符串，要求用户输入看到的字符进行身份验证的场景</p> <h4 id="发送邮箱验证码"><a href="#发送邮箱验证码" class="header-anchor">#</a> 发送邮箱验证码</h4> <div class="language-php extra-class"><pre class="language-php"><code><span class="token comment">// 准备一个 id ，此处使用一个前缀+发信邮箱地址，但总的来说它是完全自定义的</span>
<span class="token variable">$id</span> <span class="token operator">=</span> <span class="token string single-quoted-string">'user_email_verify:'</span> <span class="token operator">.</span> <span class="token variable">$this</span><span class="token operator">-&gt;</span><span class="token property">auth</span><span class="token operator">-&gt;</span><span class="token property">email</span><span class="token punctuation">;</span>

<span class="token variable">$captcha</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Captcha</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$code</span>    <span class="token operator">=</span> <span class="token variable">$captcha</span><span class="token operator">-&gt;</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token variable">$id</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token comment">// 将 $code 发送到用户邮箱，它是自动生成的字符串，您也可以通过参数二指定一个字符串</span>
<span class="token comment">// ...</span>
<span class="token comment">// $mail-&gt;send();</span>
</code></pre></div><h4 id="验证邮箱验证码"><a href="#验证邮箱验证码" class="header-anchor">#</a> 验证邮箱验证码</h4> <div class="language-php extra-class"><pre class="language-php"><code><span class="token variable">$id</span> <span class="token operator">=</span> <span class="token string single-quoted-string">'user_email_verify:'</span> <span class="token operator">.</span> <span class="token variable">$this</span><span class="token operator">-&gt;</span><span class="token property">auth</span><span class="token operator">-&gt;</span><span class="token property">email</span><span class="token punctuation">;</span>
<span class="token variable">$code</span> <span class="token operator">=</span> <span class="token variable">$this</span><span class="token operator">-&gt;</span><span class="token property">request</span><span class="token operator">-&gt;</span><span class="token function">post</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'code'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$captcha</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Captcha</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$captcha</span><span class="token operator">-&gt;</span><span class="token function">check</span><span class="token punctuation">(</span><span class="token variable">$code</span><span class="token punctuation">,</span> <span class="token variable">$id</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><p>给验证码设定一个<code>id</code>，通过这个<code>id</code>生成的验证码自然可以通过该<code>id</code>完成验证，而<code>id</code>是完全自定义的。</p> <h2 id="配置"><a href="#配置" class="header-anchor">#</a> 配置</h2> <p>验证码类带有默认的配置参数，也支持自定义配置，这些配置项包括：</p> <table><thead><tr><th style="text-align:center;">配置项</th> <th>注释</th> <th>默认值</th></tr></thead> <tbody><tr><td style="text-align:center;">codeSet</td> <td>验证码字符串集合</td> <td>数字、大小写字母，(以去除<code>1l0o</code>等容易混淆的字符)</td></tr> <tr><td style="text-align:center;">expire</td> <td>验证码过期时间(秒)</td> <td>600秒(10分钟)</td></tr> <tr><td style="text-align:center;">useZh</td> <td>使用中文验证码</td> <td>false</td></tr> <tr><td style="text-align:center;">zhSet</td> <td>中文验证码字符串</td> <td>一些预设的汉字</td></tr> <tr><td style="text-align:center;">useImgBg</td> <td>使用图片背景</td> <td>false</td></tr> <tr><td style="text-align:center;">fontSize</td> <td>验证码字体大小(px)</td> <td>25(px)</td></tr> <tr><td style="text-align:center;">useCurve</td> <td>是否画混淆曲线</td> <td>true</td></tr> <tr><td style="text-align:center;">useNoise</td> <td>是否添加杂点</td> <td>true</td></tr> <tr><td style="text-align:center;">imageH</td> <td>验证码图片高度</td> <td>0:自动计算</td></tr> <tr><td style="text-align:center;">imageW</td> <td>验证码图片宽度</td> <td>0:自动计算</td></tr> <tr><td style="text-align:center;">length</td> <td>验证码位数</td> <td>验证码位数</td></tr> <tr><td style="text-align:center;">fontttf</td> <td>验证码字体，不设置则随机获取</td> <td></td></tr> <tr><td style="text-align:center;">bg</td> <td>验证码背景色</td> <td>rgb[243, 251, 254]</td></tr> <tr><td style="text-align:center;">reset</td> <td>验证成功后重置</td> <td>true</td></tr></tbody></table></div> <footer class="page-edit"><div class="edit-link"><a href="https://gitee.com/wonderful-code/build-admin-doc/edit/master/docs/senior/server/captcha.md" target="_blank" rel="noopener noreferrer">点此帮助我们改善此页面</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div> <div class="last-updated"><span class="prefix">上次更新:</span> <span class="time">2022/12/3 18:08:02</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
      ←
      <a href="/senior/server/controller.html" class="prev">
        控制器
      </a></span> <span class="next"><a href="/senior/server/dataLImit.html">
        数据权限控制
      </a>
      →
    </span></p></div> </main></div><div class="global-ui"></div></div>
    <script src="/assets/js/app.26dfc26f.js" defer></script><script src="/assets/js/2.845fc4bd.js" defer></script><script src="/assets/js/64.01b9c0fd.js" defer></script>
  </body>
</html>
